840896387 has 2 divisors, whose sum is σ = 840896388. Its totient is φ = 840896386.

The previous prime is 840896363. The next prime is 840896503. The reversal of 840896387 is 783698048.

It is a happy number.

840896387 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 840896387 - 2¹⁴ = 840880003 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (840896327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 420448193 + 420448194.

It is an arithmetic number, because the mean of its divisors is an integer number (420448194).

Almost surely, 2^840896387 is an apocalyptic number.

840896387 is a deficient number, since it is larger than the sum of its proper divisors (1).

840896387 is an equidigital number, since it uses as much as digits as its factorization.

840896387 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2322432, while the sum is 53.

The square root of 840896387 is about 28998.2135139391. The cubic root of 840896387 is about 943.8743021105.

The spelling of 840896387 in words is "eight hundred forty million, eight hundred ninety-six thousand, three hundred eighty-seven".